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SPI-8000A Folha de dados(PDF) 1 Page - Sanken electric |
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SPI-8000A Folha de dados(HTML) 1 Page - Sanken electric |
1 / 3 page 22 ICs 1-1-3 DC/DC Converter ICs ■Features • Surface-mount 16 pin package • Output current: 3.0A • High efficiency: 91% (at VIN = 10V, lO = 1A, VO = 5V) • Capable of downsizing a choke-coil due to IC's high switching frequency (125kHz). (Com- pared with conventional Sanken devices) • The output-voltage-variable type can vary its output voltage from 1V to 14V because of its low reference voltage (Vref) of 1V. •Wide Input Voltage Range (8 to 50V) • Output ON/OFF available • Built-in overcurrent and thermal protection circuits ■Absolute Maximum Ratings Unit V W °C °C °C/W °C/W Ratings 53 2.4 +125 –40 to +125 18 50 Symbol VIN PD*1, *2 Tj Tstg θj-c*2 θj-a*2 Parameter DC Input Voltage Power Dissipation Junction Temperature Storage Temperature Thermal Resistance (junction to case) Thermal Resistance (junction to ambient air) (Ta=25°C) Parameter DC Input Voltage Range Output Voltage Range Output Current Range*2 Operating Junction Temperature Range Operating Temperature Range Symbol VIN VO IO Tjop Top Ratings SPI-8010A (8 or Vo+3)*1 to 50 1 to 14 0.02 to 3.0*2 –30 to +125 –30 to +125 *1: The minimum value of an input voltage range is the higher of either 8V or VO+3V. *2: Please be sure to let the output current run more than 20 mA. When using by less than 20 mA, there is a possibility that the output voltage becomes unstable. ■Recommended Operating Conditions *1: Limited due to thermal protection. *2: When mounted on glass-epoxy board 700cm2 (copper laminate area 30.8cm2). ■Electrical Characteristics Unit V % kHZ mV mV mV/°C A mA µA V µA Parameter Reference Voltage Efficiency Oscillation Frequency Line Regulation Load Regulation Temperature Coefficient of Reference Voltage Overcurrent Protection Starting Current Quiescent Circuit Current Circuit Current at Output OFF CE/SS Low Level Voltage Terminal Outflow Current at Low Voltage Symbol VREF Conditions Eff Conditions FOSC Conditions ∆VOLINE Conditions ∆VOLOAD Conditions ∆VREF/∆Ta IS Conditions Iq Conditions Iq(off) Conditions VSSL ISSL Conditions (Ta=25°C) * Pin 4 is the CE/SS pin. Soft start at power on can be performed with a capacitor connected to this pin. The output can also be turned ON/OFF with this pin. The output is stopped by setting the voltage of this pin to VSSL or lower. CE/SS-pin voltage can be changed with an open- collector drive circuit of a transistor. When using both the soft-start and ON/OFF functions together, the discharge current from C4 flows into the ON/OFF control transistor. Therefore, limit the current securely to protect the transistor if C3 capacitance is large. The CE/SS pin is pulled up to the power supply in the IC, so applying the external voltage is prohibited. Rating SPI-8010A (Variable type) min. typ. max. 0.97 1.00 1.03 VIN=12V, IO=1A 86 VIN=20V, IO=1A, VO=5V 250 VIN=12V, IO=1A 20 40 VIN=10 to 30V, IO=1A 10 30 VIN=12V, IO=0.1 to 1.5A ±0.5 3.1 VIN=12V 7 VIN=12V, IO=0A 400 VIN=12V, VON/OFF=0.3V 0.5 50 VSSL=0V Surface Mount, Separate Excitation Step-down Switching Mode SPI-8000A Series ■Applications • Onboard local power supplies •OA equipment • For stabilization of the secondary-side output voltage of switching power supplies SPI-8000A SPI-8000A CE/SS 4 CE/SS 4 CE/SS C4 C4 4 VO. ON/OFF Soft start Soft start +VO. ON/OFF SPI-8000A Unit V V A °C °C |
Nº de peça semelhante - SPI-8000A_11 |
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Descrição semelhante - SPI-8000A_11 |
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